Shoe upper



FIG. 1 is a front, top and right side perspective view of a shoe upper according to our design;

FIG. 2 is a left side view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a front view thereof; and,

FIG. 5 is a rear view thereof.

The broken line showing of a shoe sole in the drawings is for illustrative purposes and forms no part of the claimed design. 

The ornamental design for a shoe upper, as shown and described. 